SMALL - espritmodel.com SMALL - Telemetry SMALL - Radio
Reply
Thread Tools
Old Apr 23, 2006, 06:52 PM
Macgyver Everything
USA, MN, Alexandria
Joined Mar 2006
48 Posts
Discussion
Need some help on power setup

So this 109 is going to be a glow conversion. With the little building I have done on it so far...its going to be heavy. Im thinking with gear and all a good 38+oz. Does anyone have a suggestion one a prop and motor setup? Im not looking for "just enough", I want more than enough.






swank02 is offline Find More Posts by swank02
Reply With Quote
Sign up now
to remove ads between posts
Old Apr 23, 2006, 07:22 PM
Pushing the Limits of FFF
wirbech's Avatar
United States, CA, Sierra Madre
Joined Jun 2005
1,171 Posts
Swank02,

You might want to give the new E-flight motors a look. The have some great new outrunners that just came out. At 38+ Oz you will need about 300 watts to get the performence that you are looking for. I would go with the new power 10 or 15. I have just finished a Nitro Models P-38 with 2 of the 15's on her and man do they have alot of power. You will be looking at about a 45A ECS and some good 3300 to 4200 3s lipos, and a 11-7E to 11-8E prop. Hope this helps

John
wirbech is online now Find More Posts by wirbech
Last edited by wirbech; Apr 23, 2006 at 11:23 PM.
Reply With Quote
Old Apr 23, 2006, 09:45 PM
Macgyver Everything
USA, MN, Alexandria
Joined Mar 2006
48 Posts
Thanks...Ill keep the tred updated on the build..
swank02 is offline Find More Posts by swank02
Reply With Quote
Old Apr 23, 2006, 11:26 PM
Pushing the Limits of FFF
wirbech's Avatar
United States, CA, Sierra Madre
Joined Jun 2005
1,171 Posts
Swank02

From looking at the picss that you posted ( lookes like a 25 size plane by the box) and doing a couple of quick calcs, you might want to use the E-flight Power 25 or the hacker 30-12 outrunners. The 45A will still work ir you are not running BEC, if so you would need a 50A to be safe.

John
wirbech is online now Find More Posts by wirbech
Reply With Quote
Old Apr 24, 2006, 03:37 AM
Future NFL Champs
Fiasco's Avatar
High Ridge, Mo USA
Joined May 2002
1,657 Posts
who makes that kit?
Fiasco is offline Find More Posts by Fiasco
Reply With Quote
Old Apr 24, 2006, 04:42 AM
MultipleCrashSurvivor
drksyd's Avatar
USA, HI, Honolulu
Joined Jan 2003
2,886 Posts
I'm quite sure that's the Global kit.

You could use the eflite Power 25, Axi 2820/10 or 12, Mega 22/20/3E or 4 or Hacker 30 series as wirbech stated.
drksyd is offline Find More Posts by drksyd
Reply With Quote
Old Apr 24, 2006, 08:54 AM
Macgyver Everything
USA, MN, Alexandria
Joined Mar 2006
48 Posts
Its a modeltech .25 size
swank02 is offline Find More Posts by swank02
Reply With Quote
Old Apr 26, 2006, 08:56 PM
Balsa Flies Better!
Stamford, CT
Joined Oct 2000
6,730 Posts
Hmmphh-

If you really want to rip- you need a bit more than 300 watts. Plan on going to 150-200 watts/lb. I'd kick around the Mega 22/20/3 on a 9 x 6 with a healthy 3s li-poly that can handle 45A or so. You will be able to give a healthy glow engine powered airplane a run for its money. However, if you decide that the wing loading is getting up there- a Phasor 15/4 with a 35A capable 3s lipoly on an 8 x 6 will actually move the airplane along quite nicely.

Sam
Megowcoupe is offline Find More Posts by Megowcoupe
Reply With Quote
Old Apr 26, 2006, 09:35 PM
Registered User
Jimbo45cn's Avatar
Southwest Florida
Joined Mar 2004
3,252 Posts
I have built two of these and converted both. I am using a multiplex 480 3 G with the planetary gearbox, 4000 mah 3s polyquest and a phoenix 45. AUW with the battery is 3lbs. Flies very scale and very fast. I get around 10 to 14 minutes per charge depending how long I keep it firewalled. Mentioned I built two. The first met it's demise due to a not so well glued wing hold down. Had just made a low pass and was pulling up inverted when the wing seperated from the fuse. You can imagine the rest. Global and Hobby People were cool about it though. Sent them the piece that had seperated, ( it was obvious what happened) and they sent me a new plane. Did not cover the cost of my gear, but at least I got another. What I did with the new one was soak that wing mount with 30 min epoxy, no problems so far. Also, I was able to cut a nice hatch in front of the canopy and with a little mod put a nice batt tray in there with easy acess. I think you will love this plane, just remember that it flies pretty much like the real thing and lands fast, also can tip stall, but overall a really nice flying airplane . Good luck, Jim
Jimbo45cn is online now Find More Posts by Jimbo45cn
Reply With Quote
Old Apr 27, 2006, 02:52 AM
Macgyver Everything
USA, MN, Alexandria
Joined Mar 2006
48 Posts
Thanks Jim,
I assumed the scale-like flying qualities of this plane so the maiden is going to be one very shaky moment. I decided to go with an axi 282012, with 81 mid servo for the tail controls and a 220 for the ailerons. I will need the extra torque on the servos for the speed. I hope I dont have the same wing problem as you....but now I will take the same preventetive measures.
swank02 is offline Find More Posts by swank02
Reply With Quote
Old Apr 27, 2006, 05:59 AM
MultipleCrashSurvivor
drksyd's Avatar
USA, HI, Honolulu
Joined Jan 2003
2,886 Posts
What prop and how many cells are you going to run? I ran the 12 on 4S and a 9x7.5E prop and that was too much for the motor. You should be fine with a 9x6E if going with a 4S pack.
drksyd is offline Find More Posts by drksyd
Reply With Quote
Old Apr 27, 2006, 08:14 PM
Registered User
Jimbo45cn's Avatar
Southwest Florida
Joined Mar 2004
3,252 Posts
Swank,
I used hs 81 mgs all around, works fine. Also, I am running an 11x7 apc prop. I have had quite a few flights with mine, but still get a little shaky at times. Great airplane. Jim
Jimbo45cn is online now Find More Posts by Jimbo45cn
Reply With Quote
Old May 03, 2006, 08:45 PM
Macgyver Everything
USA, MN, Alexandria
Joined Mar 2006
48 Posts
Ok..so far I have the following set up

hs-85's for the tail group
hs-225 for the ailerons
Gunther 30-3 with a 12x6E APC (will go with a graupner 11x5.5 later)

What I need left is another Electron 6 rx and a castle 45amp esc.

Its feeling heavier every day, and the nerves are still there for the maiden.
swank02 is offline Find More Posts by swank02
Reply With Quote
Old May 03, 2006, 11:15 PM
Registered User
Jimbo45cn's Avatar
Southwest Florida
Joined Mar 2004
3,252 Posts
Swank,
Quit worrying about heavy, as long as you come in around 3lbs it will be fine. What other planes have you flown so far. Reason I ask is that this is a bit of a jump from GWS size planes. Flies more scale. Also, try to get a good takeoff roll before you lift off. With mine if I just try to blast it off without much of a roll it has a pretty nasty torque roll. Jim
Jimbo45cn is online now Find More Posts by Jimbo45cn
Reply With Quote
Old May 04, 2006, 12:32 AM
Macgyver Everything
USA, MN, Alexandria
Joined Mar 2006
48 Posts
I have a gws corsair, simple stick, edge 3d...and some others I cant name off hand right now. Im rebuilding the motor mount to use a cylinder mount so I can adjust it to compensate for the torque roll. This motor is allot for this plane. Its rated at 3.3 pounds of thrust on a 12x6 but I have seen it do more than that. This will be my first plane of this type so this will be interesting. I will be weighing it tonight.
swank02 is offline Find More Posts by swank02
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Need some help on a project Trikster Electric Ducted Fan Jet Talk 6 Mar 03, 2004 02:23 PM
need some help on this brushless motor / lesson in prop installation! jeff262 Power Systems 2 Dec 27, 2003 07:34 AM
Need some advice on power tool The_Giver Life, The Universe, and Politics 0 Nov 30, 2001 01:52 PM